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* Added Navier Stokes computational fluid dynamics algorithms to libTerrain.Channel.

afrisby
Adam Frisby 2007-07-22 02:42:29 +00:00
parent f645705851
commit 0d7af9bbf0
1 changed files with 32 additions and 1 deletions
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33
OpenSim/Region/Terrain.BasicTerrain/libTerrainBSD/Channel/Manipulators/NavierStokes.cs
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@ -220,9 +220,40 @@ namespace libTerrain
}
}
private void nsSimulate(int N, int rounds, double dt, double diff, double visc, double force, double source)
private void nsSimulate(int N, int rounds, double dt, double diff, double visc)
{
int size = (N * 2) * (N * 2);
double[] u = new double[size]; // Force, X axis
double[] v = new double[size]; // Force, Y axis
double[] u_prev = new double[size];
double[] v_prev = new double[size];
double[] dens = (double[])map.Clone();
double[] dens_prev = (double[])map.Clone();
for (int i = 0; i < rounds; i++)
{
u_prev = u;
v_prev = v;
dens_prev = dens;
nsVelStep(N, ref u, ref v, ref u_prev, ref v_prev, visc, dt);
nsDensStep(N, ref dens, ref dens_prev, ref u, ref v, diff, dt);
}
nsBufferToDoubles(ref dens, N, ref this.map);
}
/// <summary>
/// Performs computational fluid dynamics on a channel
/// </summary>
/// <param name="rounds">The number of steps to perform (Recommended: 20)</param>
/// <param name="dt">Delta Time - The time between steps</param>
/// <param name="diff">Fluid diffusion rate</param>
/// <param name="visc">Fluid viscosity</param>
public void navierStokes(int rounds, double dt, double diff, double visc)
{
nsSimulate(this.h, rounds, dt, diff, visc);
}
}
}